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The atomic number of an element 'M' is 2...

The atomic number of an element 'M' is 26. How many electrons are present in the M-shell of the element in its `M^(3+)` state ?

A

11

B

15

C

14

D

13

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (EAMCET) (Exercise - V (Electronic configuration , Aufbau principle, Pauli.s Exclusion principle and Hund.s rule ))
  1. An element has 2 electrons in its K-shell. 8 electrons in L-shell, 13 ...

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  2. The electronic configuration 1s^(2)2s^(2)2p^(6)3s^(1)3p^(3)3d^(2) repr...

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  3. The atomic number of an element 'M' is 26. How many electrons are pres...

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  4. Consider the ground state of Cr atom (Z = 24). The numbers of electron...

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  5. Which is the first element to have 4d-electron in its electronic confi...

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  6. In the ground state, an element has 13 electrons in its "M - shell". T...

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  7. (A) : The electronic configuration of Cr is [Ar]3d^(5) 4s^(1) but not ...

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  8. The electrons identified by quantum numbers n and l are I) n = 4, l...

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  9. (A) : Fe^(3+) (g) is more stable than Fe^(2+) (g) (R) : Fe^(3+) (g) ...

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  10. In which of the following Aufbau principle is violated?

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  11. Which of the following electronic configuration is not possible?

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  12. The configuration 1s^(2)2s^(2)2p^(5)3s^(1) shows

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  13. Which of the following has maximum unpaird d-electrons ?

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  14. Consider the ground state of Cr atom (Z = 24). The numbers of electron...

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  15. Mass number of Li, Be and B are 7,9 and 10 respectively. Which of the ...

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  16. The energy required to melt 1g. Ice is 33J. The number of quanta of ra...

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  17. (A) : A spectral line will be seen for 2p(x) to 2p(y) transition. (R...

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  18. When a greater number of electrons from excited hydrogen atoms reach t...

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  19. What electronic transition in Li^(+2) produces the radiation of the sa...

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  20. The wavelength of the spectral line, for the transition n = 2 to n=1 i...

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